Niggrumps Share definition Flag A name given to a grumpy/cranky African American. The name was used in the show, Key and Peele. "You woke up on the wrong side of the bed, niggrumps". Niggrumps by KewlGhewl October 12, 2014 0 0 Get merch Get the Niggrumps mug. Buy Now — $32.95 See more merch